GB1416755A - Duplicating material - Google Patents
Duplicating materialInfo
- Publication number
- GB1416755A GB1416755A GB4369873A GB4369873A GB1416755A GB 1416755 A GB1416755 A GB 1416755A GB 4369873 A GB4369873 A GB 4369873A GB 4369873 A GB4369873 A GB 4369873A GB 1416755 A GB1416755 A GB 1416755A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- coating
- precursor
- dyestuff
- acidic substance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
Landscapes
- Color Printing (AREA)
- Medicinal Preparation (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Abstract
1416755 Duplication set KORES HOLDING ZUG AG 18 Sept 1973 [21 Sept 1972] 43698/73 Heading D2B In a duplication set comprising a transfer sheet and a copy sheet, the transfer sheet has an upper surface suitable for writing upon and a lower surface provided with a pressure-sensitive transfer coating comprising an acidic substance and the copy sheet has its upper surface provided with a coating comprising a dyestuff precursor capable of reacting with the acidic substance to form a coloured substance and a binder for the dyestuff precursor. The acidic substance may be a clay a phenol, or a polyvalent metal salt. The dye precursor may be a diaryl phthalide e.g. crystal violet lactone. The latter may be used with benzoyl leucomethylene blue. The invention also comprises an intermediate sheet for use with such duplication sets, said sheet having its lower surface provided with a transfer coating and its upper surface with a dyestuff-precursor coating as described above.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT813272A AT331825B (en) | 1972-09-21 | 1972-09-21 | COPY MATERIAL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1416755A true GB1416755A (en) | 1975-12-03 |
Family
ID=3602847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4369873A Expired GB1416755A (en) | 1972-09-21 | 1973-09-18 | Duplicating material |
Country Status (23)
| Country | Link |
|---|---|
| JP (1) | JPS4970708A (en) |
| AR (1) | AR200279A1 (en) |
| AT (1) | AT331825B (en) |
| BE (1) | BE804091A (en) |
| BR (1) | BR7307082D0 (en) |
| CA (1) | CA993656A (en) |
| CH (1) | CH573314A5 (en) |
| DD (1) | DD106800A5 (en) |
| DE (1) | DE2342596A1 (en) |
| DK (1) | DK137221B (en) |
| ES (1) | ES418963A1 (en) |
| FI (1) | FI59220C (en) |
| FR (1) | FR2200787A5 (en) |
| GB (1) | GB1416755A (en) |
| IE (1) | IE38259B1 (en) |
| IL (1) | IL43232A (en) |
| IT (1) | IT995414B (en) |
| NL (1) | NL7313030A (en) |
| NO (1) | NO138720C (en) |
| SE (1) | SE414739B (en) |
| SU (1) | SU576905A3 (en) |
| TR (1) | TR17704A (en) |
| ZA (1) | ZA737195B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4379721A (en) | 1980-03-14 | 1983-04-12 | Spezial-Papiermaschinenfabrik August Alfred Krupp Gmbh & Co. | Pressure sensitive recording materials |
| CN112268903A (en) * | 2020-10-15 | 2021-01-26 | 华能国际电力股份有限公司 | On-site metallographic coated test paper and preparation and use methods thereof |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835479B2 (en) * | 1978-12-18 | 1983-08-02 | 三島製紙株式会社 | pressure sensitive recording material |
| US4347282A (en) * | 1979-04-27 | 1982-08-31 | Frye Copysystems, Inc. | Chemical carbonless copy paper and transfer medium therefor |
| US4363664A (en) | 1980-01-25 | 1982-12-14 | Sterling Drug Inc. | Novel compositions and processes |
| US4343494A (en) * | 1980-06-16 | 1982-08-10 | Frye Copysystems, Inc. | Carbonless copy paper system |
| US4339143A (en) * | 1980-08-18 | 1982-07-13 | Mishima Paper Co., Ltd. | Pressure-sensitive recording material |
-
1972
- 1972-09-21 AT AT813272A patent/AT331825B/en not_active IP Right Cessation
-
1973
- 1973-08-23 DE DE19732342596 patent/DE2342596A1/en active Pending
- 1973-08-28 BE BE134997A patent/BE804091A/en unknown
- 1973-08-29 CH CH1237473A patent/CH573314A5/xx not_active IP Right Cessation
- 1973-08-29 FI FI2685/73A patent/FI59220C/en active
- 1973-08-29 AR AR249820A patent/AR200279A1/en active
- 1973-09-05 SE SE7312099A patent/SE414739B/en unknown
- 1973-09-06 TR TR17704A patent/TR17704A/en unknown
- 1973-09-10 ZA ZA737195*A patent/ZA737195B/en unknown
- 1973-09-12 BR BR7082/73A patent/BR7307082D0/en unknown
- 1973-09-13 DD DD173459A patent/DD106800A5/xx unknown
- 1973-09-14 IL IL43232A patent/IL43232A/en unknown
- 1973-09-17 CA CA181,179A patent/CA993656A/en not_active Expired
- 1973-09-18 FR FR7333346A patent/FR2200787A5/fr not_active Expired
- 1973-09-18 IT IT28991/73A patent/IT995414B/en active
- 1973-09-18 GB GB4369873A patent/GB1416755A/en not_active Expired
- 1973-09-18 IE IE1663/73A patent/IE38259B1/en unknown
- 1973-09-19 SU SU7301965102A patent/SU576905A3/en active
- 1973-09-20 DK DK514273AA patent/DK137221B/en not_active IP Right Cessation
- 1973-09-20 NO NO3708/73A patent/NO138720C/en unknown
- 1973-09-20 JP JP48106457A patent/JPS4970708A/ja active Pending
- 1973-09-21 ES ES418963A patent/ES418963A1/en not_active Expired
- 1973-09-21 NL NL7313030A patent/NL7313030A/xx not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4379721A (en) | 1980-03-14 | 1983-04-12 | Spezial-Papiermaschinenfabrik August Alfred Krupp Gmbh & Co. | Pressure sensitive recording materials |
| CN112268903A (en) * | 2020-10-15 | 2021-01-26 | 华能国际电力股份有限公司 | On-site metallographic coated test paper and preparation and use methods thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| IT995414B (en) | 1975-11-10 |
| DD106800A5 (en) | 1974-07-05 |
| DE2342596A1 (en) | 1974-04-11 |
| NO138720B (en) | 1978-07-24 |
| DK137221C (en) | 1978-07-10 |
| AT331825B (en) | 1976-08-25 |
| ATA813272A (en) | 1975-11-15 |
| ES418963A1 (en) | 1976-07-01 |
| DK137221B (en) | 1978-02-06 |
| FR2200787A5 (en) | 1974-04-19 |
| BE804091A (en) | 1973-12-17 |
| IE38259L (en) | 1974-03-21 |
| SE414739B (en) | 1980-08-18 |
| ZA737195B (en) | 1974-08-28 |
| AR200279A1 (en) | 1974-10-31 |
| IE38259B1 (en) | 1978-02-01 |
| TR17704A (en) | 1975-07-23 |
| CH573314A5 (en) | 1976-03-15 |
| IL43232A (en) | 1976-10-31 |
| BR7307082D0 (en) | 1974-07-25 |
| FI59220C (en) | 1981-07-10 |
| NL7313030A (en) | 1974-03-25 |
| NO138720C (en) | 1978-11-01 |
| JPS4970708A (en) | 1974-07-09 |
| FI59220B (en) | 1981-03-31 |
| SU576905A3 (en) | 1977-10-15 |
| CA993656A (en) | 1976-07-27 |
| IL43232A0 (en) | 1973-11-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |